.japanese-reader-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0 8px 8px 0;
    padding: 5px 10px;
    border: 1px solid #497cef;
    border-radius: 5px;
    background: #fff;
    color: #2455bc;
    font: inherit;
    font-size: 14px;
    cursor: pointer;
}
.japanese-reader-button[hidden] { display: none; }
.japanese-reader-button:hover,
.japanese-reader-button[aria-pressed="true"] { background: #eaf0ff; }
.japanese-reader-button:focus-visible { outline: 2px solid #2455bc; outline-offset: 2px; }
.japanese-reader-status { font-size: 14px; }